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<title>FatFs - f_mountdrv</title>
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<div class="para">
<h2>f_mountdrv</h2>
<p>The f_mountdrv forces the partition mounted.</p>
<pre>
FRESULT f_mountdrv (void);
</pre>
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<h4>Return Values</h4>
<dl class="ret">
<dt>FR_OK (0)</dt>
<dd>The function succeeded.</dd>
<dt>FR_NOT_READY</dt>
<dd>The disk drive cannot work due to no medium in the drive or any other reason.</dd>
<dt>FR_RW_ERROR</dt>
<dd>Any error occured in low level disk I/O.</dd>
<dt>FR_NOT_ENABLED</dt>
<dd>FatFs module is not enabled.</dd>
<dt>FR_NO_FILESYSTEM</dt>
<dd>There is no valid FAT partition on the disk.</dd>
</dl>
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<div class="para">
<h4>Description</h4>
<p>The f_mountdrv forces the partition mounted (initializes <tt>FATFS</tt> structure). The file system is initialized automatically in accordance with the necessity when any file function is called. This function should not be used except for recovering <tt>FR_INCORRECT_DISK_CHANGE</tt> error. Using this function, while any file is opened, can destroy the file system.</p>
<p>In this function, following processes are executed.</p><br>
<ul>
<li>Initializes lower level layer (disk I/O module).</li>
<li>Searches a FAT boot record in order of sector 0 (as SFD format) and first primary partition (as FDISK format).</li>
<li>Initializes file system object (<tt>FATFS</tt> structure).</li>
</ul>
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<div class="para">
<h4>References</h4>
<p><tt><a href="sfatfs.html">FATFS</a></tt></p>
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